Abstract
An analytical method was validated for the determination of fenpropathrin in dried strawberry samples using RP-HPLC. Under the optimal conditions, LOD was obtained as 3.2 µg L−1. The method demonstrated good linearity (R2 > 0.9997) and satisfactory repeatability (%RSD ≤ 4.12) at low concentrations. The validated assay was applied to spiked samples. High percent recovery values were obtained. The analyte was subjected to simulated gastric conditions, and no major change of the analyte peak areas and retention time throughout 300 min was observed. This graphical abstract represents the developed HPLC-UV method. The samples were ground into powdery form prior to taking 0.10 g for extraction with 10 mL of methanol. The samples were then mixed on a mechanical shaker for 45 min and centrifuged for 2.0 min. The supernatant was filtered through a 0.45 µm syringe filter, diluted and analyzed under the optimum parameters.